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L. A. MILBANK.

LAMP BURNER. No. 519,865. Patented May 15,1894.

um Wm 9A 2% i G M- WW W U ITED STATES PATENT OFFICE.

LUTHER A. MILBANK, OF NEW YORK, N. Y.

LAM P-BURNER.

SPECIFICATION forming part of Letters Patent No. 519,865, dated May 15,1894.

Application filed February 24, 1893- Serial No. 463,577- (N 0 model.)

To all whom it may concern:

Be it known that I, LUTHER A. MILBANK, of New York city, New York, haveinvented certain new and useful Improvements in Lamp-Burners, of whichthe following is a description, reference being taken to theaccompanying drawings, which form part of this specification.

The object of my invention is to produce a lamp burner for fiat wickswhich shall effectually prevent smoking the lamp chimney. Heretofore ithas not been found impossible, in burners without special attachmentsand of simple construction, to prevent the uneven rise of the edges orcornersof the wick; and even when the wick is once carefully adjustedand lighted one corner or the other will often creep upward as theburner becomes warm, and will cause the flame to project upward uponthat side above its proper height, and to smoke. With my inventionhowever such creeping must take place more evenly; so that, if the lampsmokes, the smoke will rise centrally from the flame Without smokingeither side of the chimney and without coming in contact with the glassat any point.

To these ends, my invention lies in the wick tube and in a burnerprovided with such Wick tube, constructed, arranged, combined, andoperating substantially in a manner hereinafter described, illustrated,and claimed.

I have discovered that I can retard the edges of a flat or similar wick,as it emerges from a wick tube or wick chamber, by means of a small edgeof metal orother non-inflammable material, projecting inwardly a shortdistance at each edge of the tube or chamber. I found that, with such aconstruction, a wick, when properly turned up, and trimmed so that theend of the wick just comes in contact with these edges, would burn inthe usual manner, and that, as the wick crept upward, these proj ectionsentirely prevented the flaring up of the corners of the flame and theconsequent smoking of the chimney. Moreover, if the wick be turned upfarther, until it smokes,

the sides or lateral edges of the wick will be so retarded by theseprojections that the flame will smoke from its middle portion, and thecolumn of rising smoke will therefore not come in contact with theglass.

In the crude form of my invention I form projections or retarding edgesof separate strips of thin metal, bent over and secured to the wicktube, and projecting inward about a sixteenth of an inch over each endof the mouth of the wick tube. My preferred form however has the wicktube itself rounded in at these points and forming in thisway theretarding edges.

The accompanying drawings illustrate two embodiments of my invention.

Figure 1 shows a cross section, parallel with the wick, of a burnerprovided with my improvement in its preferred form. Fig. 2. is a similarview of the crude form above described, and Figs. 3 and tare views ofthe two wick tubes respectively, as seen looking downward into them.

In the figures like letters of reference indi- 7o cate like parts.

13 indicates the wick tube or wick chamber surrounded in the usual wayby the cone 0 and gallery D.

My projecting or retarding edges are indicated in the preferred form bythe letter I) and in the other form by b. In the latter they consist ofstraight thin pieces of metal, as shown, bent into Ushape and secured inthe inclined position indicated in Fig. 2, so that the legs of the Ustraddle the corners of the wick tube, and the yoke of the U forms ateach end of the mouth of the tube a continuation and projection of themetal of the wick tube, turning inand to bear against and retard theedges of the wick. In my preferred form seen in Figs. 1 and 3, the metalof the tube is turned or worked in,to serve the same purpose. Thisslight modification of a lamp burner constituting my invention andproducing this totally new result, has been set forth in the foregoingas applied to flat wicks, for it is unnecessary to explain in detail theapplication of the invention to the other well known forms of wicks.Moreover I do not attempt to enu- 5 nierate any of the manymodifications that may be suggested by mere mechanical skill since so todo would obscure rather than make clear the essentials of my invention.

I claim, desiring to secure by these Letters Patent all modificationsand variations that may be made without departing from the principles ofmy invention, the following:

1. A burner provided with a wick chamber or tube B having an inwardlyprojecting edge at each end of the mouth of the said wick tube orchamber, for bearing against and retarding the advance of the edges ofthe wick, and thereby preventing smoking from the sides of the flame,substantially as, and for the purposes, set forth.

2. A wick chamber or tube 13 provided with inwardly projecting edges inposition to bear against and retard the advance of the edges of thewick, substantially as, and for the purposes, set forth.

3. A fiat wick tube or chamber B having its edges turned in, as at b,substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 28th day ofOctober, 1892.

LUTHER A. MILBANK.

Witnesses:

FRED. HEMMING, G. M. PLYMPTON.

